7/11/2014 8:50 AM PDT BY TMZ STAFF

EXCLUSIVE

2:10 P.M. PDT -- Inyo County officials tell us ... an autopsy was performed and the cause of death is heat stroke. One of the villains from the "Harry Potter" movies -- British actor Dave Legeno -- died while hiking in Death Valley ... TMZ has learned.

Legeno's body was found by a pair of hikers on Sunday in an area so remote ... a CHP helicopter had to be called in to remove it.

50-year-old Legeno played the werewolf Fenrir Greyback in the 'Potter' movies. He was also in "Snatch."

The Inyo County Sheriff's Department (in CA) tells TMZ it appears Legeno died of heat related issues ... and may have been dead for 3-4 days before his body was discovered. Summer temps in Death Valley are known to go over 120 degrees.

We're told the coroner still has Legeno's body while his family makes plans.

He has a daughter in her 20s.

Dave was also a pretty successful MMA fighter in the UK ... with a professional record of 4-3.

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10/13/2011 10:25 AM PDT BY TMZ STAFF

The actor who played Crabbe the bully in 6 of the "Harry Potter" movies has been charged with possession of a homemade bomb ... which cops say he intended to detonate during the London riots.

According to U.K. reports, cops believe 22-year-old Jamie Waylett was packing a Molotov cocktail while looting champagne from a drug store during the London riots on August 8th.

Law enforcement sources tell TMZ ... Waylett was later identified by video footage after the incident ... and cops eventually arrested him on Sept. 20.

At some point during the investigation, cops claim they found 15 marijuana plants in Waylett's home.

Cops released a statement saying ... "[Waylett] was charged with violent disorder, having an article with intent to destroy or damage property, receiving stolen goods and also cultivating cannabis plants."

Waylett was eventually released on bail -- he's due back in court on Nov. 11.

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10/7/2011 8:43 AM PDT BY TMZ STAFF

Berry -- the dog that played Padfoot in "Harry Potter & The Prisoner of Azkaban" -- will remain an orphan for the next few weeks -- because the people who run the rescue shelter where he lives have decided he's too famous to adopt.

10-year-old Berry's original owner (a stuntman) put the dog up for adoption because he was too busy to take care of it -- but a rep for the German Shepherd Dog Rescue in the UK tells TMZ, the charity won't let anyone adopt Berry until the publicity surrounding the HP movies has died down.

According to the rep, the rescue is worried someone will adopt Berry just for his star power -- not for his companionship.

In the meantime, the rep says, "We are busy home checking lots of new people ... and then will decide if one of them is good enough."

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7/20/2011 5:00 AM PDT BY TMZ STAFF

As if J.K. Rowling wasn't rich enough -- Warner Bros. gave her a token of its appreciation for the latest "Harry Potter" flick -- an insanely expensive piece of jewelry.

Sources close to CEO Barry Meyer tell TMZ ... Rowling scored a white gold, antique 40-diamond bracelet worth millions of dollars -- which he presented to her at the London premiere after-party.

According to sources, Rowling was nervous about donning such a valuable piece of jewelry before she got it insured ... but she got a more primitive form of insurance -- a bunch of burly security guards at the bash.

Price, of course, is relative -- wordwide, the latest movie has grossed more than half-a-billion bucks.

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9/29/2010 8:00 AM PDT BY TMZ STAFF

Emma Watson modeled her little boy haircut during an emergency evacuation at Brown University yesterday morning -- but TMZ has learned ... unlike Hermione's 'do, the scary situation was a false alarm.

According to sources at Brown, the fire alarm at the dorm where she was staying went off around 10am -- and we're told, it all started with a leaky steam pipe ... which triggered the emergency alert system.

No one was injured -- and after about 10 embarrassing minutes outside in their pajamas, the students were allowed to return to their chambers of secrets.

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9/24/2009 1:10 AM PDT BY TMZ STAFF

It's the newest craze sweeping through Hollywood -- celebrities with Swine Flu!!!! And now two new members are on the infectious bandwagon! CNN's chief medical expert Dr. Sanjay Gupta just got over hisbout with the Swine Flu -- and Marilyn Manson just announced that he's got S.F. right now!

"Harry Potter's" Rupert Grint had it ... "The Early Show's" Harry Smith thinks he has it ... and Lisa Rinna claims her entire family got down with the sickness. It's a full blown trend!

According to Manson, he didn't contract it by "f**king a pig" -- we're guessing Gupta didn't either.

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7/16/2009 3:00 AM PDT BY TMZ STAFF

The kid who plays Vincent Crabbe in the "Harry Potter" movies could be heading to Azkaban wizard prison soon -- he just pled guilty to growing magical marijuana plants inside his mother's London home.

Jamie Waylett -- who plays the school bully in all six "Potter" flicks -- was popped in April after cops found eight bags of weed in the car in which Jamie was riding. Cops then searched Waylett's mom's place and found 10 pot plants.

Waylett will be sentenced on Tuesday -- he faces up to 14 years in the slammer.